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Showing 1 to 13 of 13 for “"dc-dc Power Conversion"”.
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Radio frequency dc-dc power conversion
… system architectures and circuit topologies for dc-dc power conversion at very high frequencies. The systems architectures that are developed are structured to overcome limitations associated with conventional designs. In particular, the new architectures described here structure the energy …
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Radio frequency rectifiers for DC-DC power conversion
A significant factor driving the development of power conversion technology is the need to increase performance while reducing size and improving efficiency. In addition, there is a desire to increase the level of integration of DC-DC converters in order to take advantage of the cost and other …
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Practical Implementation of Boundary Control for Dc-Dc Power Conversion
… technique that uses the state trajectories of a dc-dc converter to formulate a control law that defines the state of the active switch in the converter. Unlike conventional methods, boundary controllers guarantee large signal stability. In this dissertation, a deep analysis of boundary control …
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High-Efficiency and High-Power Density DC-DC Power Conversion Using Wide Bandgap Devices for Modular Photovoltaic Applications
With the development of solar energy, power conversion systems responsible for energy delivering from photovoltaic (PV) modules to ac or dc grid attract wide attentions and have significantly increased installations worldwide. Modular power conversion system has the highest efficiency of maximum …
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Design of High-Performance Piezoelectric Transformer-Based DC-DC Converters
… are a promising energy storage alternative for power converter miniaturization. PTs offer galvanic isolation and voltage transformation like traditional magnetic transformers, but have more advantageous power scaling properties at low volumes. Despite these advantages, most attempts at …
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Design and evaluation of a very high frequency dc/dc converter
… for very high frequency (VHF, 30-300 MHz) dc-dc power conversion. The proposed design is a fixed frequency, fixed duty ratio resonant converter featuring low device stress, high efficiency over a wide load range, and excellent transient performance. A 110 MHz, 23 W experimental converter …
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Class-E Current Source Power Conversion
Current source is used in auxiliary power supplies, battery chargers, and LED drivers. The battery chargers are required to provide constant current within a wide output voltage range, similar to LED drivers. The load-independent (LI) Class-E inverter is a promising topology for such applications …
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High-frequency multi-resonant power conversion techniques
The multi-resonant technique, a novel concept in dc/dc power conversion, is proposed. The essence of the multi-resonant power conversion is the effective utilization of the major parasitic reactive components of the power stage, including the leakage inductance of the power transformer, output …
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Experimental investigation of semiconductor losses in cryogenic DC-DC converters
… benefits in terms of the performance of the power electronics or may enable other system benefits such as higher voltage lower current feedthroughs which reduce heat leakage into the cryostat. This Thesis studies the performance of several DC-DC power conversion techniques at temperatures …
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Topology Investigation and System Optimization of Resonant Converters
… the past several years, energy efficiency and power density have become the top concerns for power conversion. Rising energy intensity leads to a higher cost of delivering power. Meanwhile, the demand for compact power supplies grows significantly. It requires power supplies with high …
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Full Bridge LLC Converter Secondary Architecture Study for Photovoltaic Application
… panels is a popular solution. Thus, targeted Power Conditioning Systems (PCSs) are drawing increased attention in research. Microconverter is one of the PCS that can support versatile applications in various power line architectures. This work focuses on the comparison of circuit secondary …
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Photovoltaic Source Simulators for Solar Power Conditioning Systems: Design Optimization, Modeling, and Control
… for the dynamic performance evaluation of solar power conditioning systems and their maximum power point tracking algorithms. A well-designed PV source simulator should accurately emulate the static and the dynamic characteristic of actual PV generator. Four major design features should be …
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A Novel DC-DC Converter for Photovoltaic Applications
… a clean energy future. In this thesis, a novel DC-DC converter known as the Coupled Inductors Combined Cuk-SEPIC' (CI-CCS) converter is explored, which is particularly attractive for these photovoltaic applications. A topological modification is investigated which provides several benefits, …